Unlock instant, AI-driven research and patent intelligence for your innovation.

A ground wire DC ice melting device

A DC ice-melting and grounding technology, applied in the field of electric power, can solve the problems of difficult lightning protection and poor insulation performance, so as to ensure reliability and achieve the effect of lightning drainage

Active Publication Date: 2021-11-09
HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention mainly solves the problems of poor insulation performance of the ground wire melting device in the existing technology and difficulty in lightning protection during the insulation process; it provides a ground wire DC ice melting device, which increases the insulation reliability of the ground wire and the tower body, Improve the service life of the device, and can still achieve lightning drainage when the ground wire is covered with ice

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A ground wire DC ice melting device
  • A ground wire DC ice melting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: A kind of direct current ice-melting device for the ground wire, such as figure 1 As shown, it includes tower body, installation base 1, lightning rod 2, lightning protection device with gap 3, snow cover 4, monitoring system 5, DC power supply, relay, control system, grounding contact 6, first cable 7, second The cable 8, the lever bracket and the grounding wire clamp, the installation base 1 is fixedly connected with the tower body, the lightning rod 2 and the lightning protection device 3 with a gap are fixedly installed on the installation base 1, and the lightning rod 2 is connected to the ground wire through the lightning protection device 3 with a gap, The lever support is fixedly connected with the installation base 1, the snow cover 4 is connected with the lever support in rotation, the ground contact 6 is connected with the lever support, the ground contact 6 and the snow cover 4 are located on both sides of the lever support respectively, and the...

Embodiment 2

[0024] Embodiment 2. Compared with Embodiment 1, this embodiment adds a pressure sensor. The pressure sensor is installed on the snow plate 4 to detect the degree of snow accumulation on the snow plate 4. The pressure sensor is connected to the control system, and the rest of the structure Same as embodiment one. The ice-melting device of the present embodiment records the pressure information of the snow accumulation on the snow accumulation plate 4 through the pressure sensor, and the snow accumulation plate 4 will be tilted when determining how much snow accumulation reaches. When the sensor detects that the pressure on the snow plate 4 reaches the inclination value of the snow plate 4, the cable can be manually pulled to insulate the tower body and the ground wire, which is convenient for maintenance personnel to troubleshoot.

Embodiment 3

[0025] Embodiment three, this embodiment has increased solar battery panel, transistor, ultraviolet sensor and standby power supply compared with embodiment one, and solar battery panel and ultraviolet sensor are all installed on the mounting base 1, and solar battery panel is connected with the collector of transistor , the emitter of the transistor is connected to the backup power supply, the base of the transistor is connected to the control system, the ultraviolet sensor is used to detect the intensity of sunlight, the ultraviolet sensor is connected to the control system, and the rest of the structure is the same as that of the first embodiment. The ice-melting device of this embodiment uses solar panels and a backup power supply to store solar energy conversion. When the ground line is not seriously icing, if a DC power supply is used to melt the ice, a large loss will be generated, and the backup power supply can be used. Power on to melt the ice. At the same time, when ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a ground wire DC deicing device, comprising a DC power supply, a ground switch device, a ground wire connection device, a monitoring system, a relay and a control system, the ground switch device is installed on a tower body, and the ground switch device is connected to the ground wire Device connection, the ground connection device is connected to the ground wire, the positive pole of the DC power supply is connected to one end of the ground wire through a relay, the negative pole of the DC power supply is connected to the other end of the ground wire, and the monitoring system is installed on the grounding switch device to monitor the grounding The working status and meteorological information of the switchgear, the monitoring system and the relay are all connected with the control system. The present invention utilizes the gravity of ice and snow to realize the automatic insulation and conduction between the ground wire and the tower body through the snow plate and the lever bracket, and increases the reliability of the insulation through the cable. Realize lightning strike drainage during insulation.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a ground wire direct current ice-melting device. Background technique [0002] The suspension string of the ground wire is connected to the cross arm of the ground wire with a piece of insulator, and is directly connected to the tower body with the drain wire of the parallel ditch clamp, so as to achieve the purpose of lightning protection and grounding. When the ground line is covered with ice, in order to ensure the safety of line operation and prevent power outage accidents caused by tower collapse, disconnection, and insufficient distance to the ground wire, ice-melting measures are generally taken. The wire and the tower material are reliably insulated, but in practical applications, the ground wire and the tower material are grounded, and it is difficult to achieve reliable insulation between the ground wire and the tower body. Therefore, people usually need to cli...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02G7/16H01H31/00
CPCH01H31/003H02G7/16
Inventor 张云峰吴凯蒋伟章旭泳岳灵平孙峰方杰季世超张志亮张刚宋庆彬
Owner HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD